Mercurial > hg > truffle
view graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64DeoptimizationStub.java @ 7919:0ae70d44ec9a
Restructure Op2 in AMD64 backend.
author | Roland Schatz <roland.schatz@oracle.com> |
---|---|
date | Mon, 04 Mar 2013 16:48:11 +0100 |
parents | c82170bb9936 |
children | c6c72de0537e |
line wrap: on
line source
/* * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.compiler.amd64; import java.util.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.code.RuntimeCallTarget.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.amd64.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.phases.*; public class AMD64DeoptimizationStub extends AMD64Code { public static final Descriptor DEOPTIMIZE = new Descriptor("deoptimize", true, void.class); public static final Descriptor SET_DEOPT_INFO = new Descriptor("setDeoptInfo", true, void.class, Object.class); public final Label label = new Label(); public final LIRFrameState info; public final DeoptimizationAction action; public final DeoptimizationReason reason; public final Object deoptInfo; public AMD64DeoptimizationStub(DeoptimizationAction action, DeoptimizationReason reason, LIRFrameState info, Object deoptInfo) { this.action = action; this.reason = reason; this.info = info; this.deoptInfo = deoptInfo; } private static ArrayList<Object> keepAlive = new ArrayList<>(); @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { Register scratch = tasm.frameMap.registerConfig.getScratchRegister(); masm.bind(label); if (GraalOptions.CreateDeoptInfo && deoptInfo != null) { masm.nop(); keepAlive.add(deoptInfo.toString()); AMD64Move.move(tasm, masm, scratch.asValue(), Constant.forObject(deoptInfo)); AMD64Call.directCall(tasm, masm, tasm.runtime.lookupRuntimeCall(SET_DEOPT_INFO), info); } masm.movl(scratch, tasm.runtime.encodeDeoptActionAndReason(action, reason)); AMD64Call.directCall(tasm, masm, tasm.runtime.lookupRuntimeCall(DEOPTIMIZE), info); AMD64Call.shouldNotReachHere(tasm, masm); } @Override public String description() { return "deopt stub[reason=" + reason + ", action=" + action + "]"; } }